Took the HK 91 to the range today. Testing the new Tapco Aluminum Mags,and South African .308 surplus ammo. Absolutely flawless operation,no malfs whatsoever. The recoil was heafty, the trigger pull was cleanand crisp. An accurate rifle, shot on the 100yd. range. After 100 roundsfired, the satisfaction is great. Now it's time to clean the beast.